// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/child/image_decoder.h"

#include "content/public/child/image_decoder_utils.h"
#include "third_party/WebKit/public/platform/WebData.h"
#include "third_party/WebKit/public/platform/WebImage.h"
#include "third_party/WebKit/public/platform/WebSize.h"
#include "third_party/skia/include/core/SkBitmap.h"

using blink::WebData;
using blink::WebImage;

namespace content {

SkBitmap DecodeImage(const unsigned char* data,
    const gfx::Size& desired_image_size,
    size_t size)
{
    ImageDecoder decoder(desired_image_size);
    return decoder.Decode(data, size);
}

ImageDecoder::ImageDecoder()
    : desired_icon_size_(0, 0)
{
}

ImageDecoder::ImageDecoder(const gfx::Size& desired_icon_size)
    : desired_icon_size_(desired_icon_size)
{
}

ImageDecoder::~ImageDecoder()
{
}

SkBitmap ImageDecoder::Decode(const unsigned char* data, size_t size) const
{
    const WebImage& image = WebImage::fromData(
        WebData(reinterpret_cast<const char*>(data), size), desired_icon_size_);
    return image.getSkBitmap();
}

// static
std::vector<SkBitmap> ImageDecoder::DecodeAll(
    const unsigned char* data, size_t size)
{
    const blink::WebVector<WebImage>& images = WebImage::framesFromData(
        WebData(reinterpret_cast<const char*>(data), size));
    std::vector<SkBitmap> result;
    for (size_t i = 0; i < images.size(); ++i)
        result.push_back(images[i].getSkBitmap());
    return result;
}

} // namespace content
